National Weather Service United States Department of Commerce

Severe Storms and Heavy Rain Possible Later This Afternoon Into Tonight

A few severe storms with damaging winds and large hail are expected later today from parts of Illinois into lower Michigan. A somewhat longer-duration severe storm threat is expected this afternoon into tonight from the Kansas/Oklahoma border region into southern Missouri, where a couple tornadoes will also be possible.
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Hazardous Weather Conditions

Last Update: 345 PM EDT MON SEP 1 2014

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Coastal waters from Bonita Beach to Englewood FL out 20 NM

Marine Zone Forecast

IMPORTANT NOTICE TO MARINERS...MARINE FORECASTS ARE ISSUED AT LEAST FOUR TIMES A DAY. BOATERS ON EXTENDED TRIPS SHOULD ROUTINELY MONITOR SUBSEQUENT FORECAST ISSUANCES AND UPDATES FOR THE LATEST MARINE WEATHER INFORMATION. THE WAVE HEIGHTS ARE FORECAST AS SIGNIFICANT WAVE HEIGHT WHICH IS THE AVERAGE OF THE HIGHEST ONE-THIRD OF THE WAVES. THE HIGHEST WAVES MAY RARELY BE TWICE THE SIGNIFICANT WAVE HEIGHT. THE WINDS AND SEAS NEAR THUNDERSTORMS MAY BE HIGHER THAN FORECAST.


  • SynopsisEAST SOUTHEAST WINDS LESS THAN 15 KNOTS AND SEAS 2 FEET OF LESS WILL CONTINUE THROUGH THE WEEK AS HIGH PRESSURE OVER THE ATLANTIC BUILDS WEST OVER THE FLORIDA PENINSULA. THE SEA BREEZE WILL SET UP ALONG THE COASTLINE EACH DAY TURNING THE WINDS TO AN ONSHORE FLOW OUT OF THE SOUTHWEST THROUGH NORTHWEST DIRECTION. SCATTERED SHOWERS AND STORMS WILL BE POSSIBLE EACH DAY DEVELOPING OVER LAND AND THEN PUSHING WESTWARD OVER THE COASTAL WATERS DURING THE EVENING HOURS. MARINERS SHOULD EXPECT GUSTY WINDS AND HIGHER SEAS IN THE VICINITY OF THUNDERSTORMS.
  • Tonight Onshore winds 5 to 10 knots then becoming east after midnight. Seas 2 feet or less. Bay and inland waters a light chop. A chance of thunderstorms in the evening.
  • Tuesday East winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth. Scattered thunderstorms in the afternoon.
  • Tuesday Night Northeast winds around 5 knots then becoming east after midnight. Seas 2 feet or less. Bay and inland waters smooth. Scattered thunderstorms in the evening...then isolated thunderstorms after midnight.
  • Wednesday East winds around 10 knots then becoming southeast around 5 knots in the afternoon. Seas 2 feet. Bay and inland waters a light chop. Isolated thunderstorms in the morning. Scattered thunderstorms in the afternoon.
  • Wednesday Night East winds around 5 knots increasing to around 10 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Scattered thunderstorms in the evening.
  • Thursday East winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered thunderstorms in the afternoon.
  • Thursday Night East winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered thunderstorms in the evening... Then isolated thunderstorms after midnight.
  • Friday Southeast winds around 10 knots diminishing to around 5 knots in the afternoon. Seas 2 feet. Bay and inland waters a light chop. Scattered thunderstorms in the afternoon.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from Bonita Beach to Englewood FL out 20 NM
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